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Exosomes serve as a mediator in intercellular communication. Exosomes derived from bladder cancer cells were labeled with FITC-conjugated anti-CD9 antibody (green) and counterstained with Hoechst 33342 (blue) for 24 h, and exosomes uptake was observed under a BioTek LIONheart FX microscope (A) for different spectra, and (B) merged figures were aligned upon different time points.
